Celsius to Fahrenheit

How to convert Celsius to Fahrenheit

1. Type the temperature in Celsius.
2. The Fahrenheit value shows right away.
3. Check the table below for common temperatures.
4. Change the number to convert another value.

The formula

To go from Celsius to Fahrenheit, multiply by 9, divide by 5, then add 32. In short, Fahrenheit equals Celsius times 9/5 plus 32. For example, 20 degrees Celsius becomes 20 times 9/5, which is 36, plus 32, which is 68 degrees Fahrenheit. That is a mild spring day.

When you need this

People in most countries think in Celsius, but recipes, ovens, and weather from the United States use Fahrenheit. If a US recipe says bake at 350, that is about 177 Celsius. If a US forecast says 90, that is a hot 32 Celsius. This page turns those numbers into the scale you know.

A few to remember

Water freezes at 0 Celsius, which is 32 Fahrenheit. Water boils at 100 Celsius, which is 212 Fahrenheit. Normal body heat is about 37 Celsius, or 98.6 Fahrenheit. And minus 40 is the one point where both scales read the same number.

FAQ

What is 20 degrees Celsius in Fahrenheit?

68 degrees Fahrenheit. Multiply 20 by 9/5 to get 36, then add 32.

What is a normal body temperature in Fahrenheit?

About 98.6 degrees Fahrenheit, which is 37 Celsius.

What oven temperature is 180 Celsius in Fahrenheit?

About 356 Fahrenheit. Many recipes round this to 350.

Why add 32 in the formula?

Because the two scales set their freezing point at different numbers. Celsius freezes at 0 and Fahrenheit at 32, so the shift closes that gap.

Is my data private?

Yes. The conversion runs in your browser and nothing is saved.

Is centigrade the same as Celsius?

Yes. Centigrade to Fahrenheit is the same conversion under an older name for the scale. For a quick C to F estimate in your head, double the Celsius number and add 30: that turns 20 into 70, close to the exact 68.